<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="类型" prop="type">
        <el-select v-model="queryParams.type" placeholder="请选择类型" clearable size="small">
          <el-option
            v-for="dict in dict.type.curriculum_type"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="课程id" prop="curriculumId">
        <el-input
          v-model="queryParams.curriculumId"
          placeholder="请输入课程id"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="课程详情id" prop="curriculumDetailsId">
        <el-input
          v-model="queryParams.curriculumDetailsId"
          placeholder="请输入课程详情id"
          clearable
          size="small"
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
<!--      <el-col :span="1.5">-->
<!--        <el-button-->
<!--          type="primary"-->
<!--          plain-->
<!--          icon="el-icon-plus"-->
<!--          size="mini"-->
<!--          @click="handleAdd"-->
<!--          v-hasPermi="['music:practice:add']"-->
<!--        >新增</el-button>-->
<!--      </el-col>-->
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['music:practice:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['music:practice:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['music:practice:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="practiceList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="ID" align="center" prop="id" />
      <el-table-column label="类型" align="center" prop="type">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.curriculum_type" :value="scope.row.type"/>
        </template>
      </el-table-column>
<!--      <el-table-column label="课程id" align="center" prop="curriculumId" />-->
<!--      <el-table-column label="课程详情id" align="center" prop="curriculumDetailsId" />-->
      <el-table-column label="课程" align="center" prop="curriculumId" >
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            @click="getCurriculumInfo(scope.row.curriculumId)"
          >查看课程</el-button>
        </template>
      </el-table-column>
<!--      <el-table-column label="练习文件" align="center" prop="url" />-->
      <el-table-column label="创建者" align="center" prop="createBy" />
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="更新者" align="center" prop="updateBy" />
      <el-table-column label="更新时间" align="center" prop="updateTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.updateTime, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-download"
            @click="handleDownload(scope.row)"
          >下载</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['music:practice:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['music:practice:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改课程练习对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
<!--        <el-form-item label="类型" prop="type">-->
<!--          <el-select v-model="form.type" placeholder="请选择类型">-->
<!--            <el-option-->
<!--              v-for="dict in dict.type.curriculum_type"-->
<!--              :key="dict.value"-->
<!--              :label="dict.label"-->
<!--:value="dict.value"-->
<!--            ></el-option>-->
<!--          </el-select>-->
<!--        </el-form-item>-->
<!--        <el-form-item label="课程id" prop="curriculumId">-->
<!--          <el-input v-model="form.curriculumId" placeholder="请输入课程id" />-->
<!--        </el-form-item>-->
<!--        <el-form-item label="课程详情id" prop="curriculumDetailsId">-->
<!--          <el-input v-model="form.curriculumDetailsId" placeholder="请输入课程详情id" />-->
<!--        </el-form-item>-->
        <el-form-item label="练习文件">
          <fileUpload v-model="form.url"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { myListPractice, getPractice, delPractice, addPractice, updatePractice } from "@/api/music/practice";

export default {
  name: "Practice",
  dicts: ['curriculum_type'],
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 课程练习表格数据
      practiceList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        type: null,
        curriculumId: null,
        curriculumDetailsId: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        type: [
          { required: true, message: "类型不能为空", trigger: "change" }
        ],
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询课程练习列表 */
    getList() {
      this.loading = true;
      myListPractice(this.queryParams).then(response => {
        this.practiceList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        type: null,
        curriculumId: null,
        curriculumDetailsId: null,
        url: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加课程练习";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getPractice(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改课程练习";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updatePractice(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addPractice(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除课程练习编号为"' + ids + '"的数据项？').then(function() {
        return delPractice(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('music/practice/export', {
        ...this.queryParams
      }, `practice_${new Date().getTime()}.xlsx`)
    },
    // 文件下载处理
    handleDownload(row) {
      const urls = row.url.split("/");
      var name = urls[urls.length-1].split(".")[0]
      var url = row.url;
      var suffix = url.substring(url.lastIndexOf("."), url.length);
      const a = document.createElement('a')
      a.setAttribute('download', name)
      a.setAttribute('target', '_blank')
      a.setAttribute('href', process.env.VUE_APP_BASE_API + url)
      a.click()
    },
    //跳转详情页
    getCurriculumInfo(id) {
      let routeUrl = this.$router.resolve({
        path: '/curriculum/main/info',
        query: {
          cId: id
        }
      });
      window.open(routeUrl.href, '_blank');
    }
  }
};
</script>
